title: Chemical modification of carboxyl groups in porcine pepsin.
mesh_terms: D000818:Animals; D002264:Carboxylic Acids; D055598:Chemical Phenomena; D002621:Chemistry; D007700:Kinetics; D010434:Pepsin A / Q000032:analysis*; D013552:Swine
chemical_list: D002264:Carboxylic Acids; D010434:Pepsin A